I am building a 383 stroker run with flat top pistons, 081 heads (64cc,1.94/1.60), 268 extreme energy comp cam, performer intake, crane hi-6 ignition, headers, flowmasters. Anyone have a suggestion for a carburetor? Is a holley 750 vacuum secondary too big, what about a 650? The motor is going in an '81 monte carlo. What about jet sizing? I'm mostly looking for torque. Also, should I change the intake to a performer rpm?